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>Video for Linux Two API Specification: Revision 0.24</TH
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><H1
><A
NAME="V4L2-PIX-FMT-YUYV"
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>V4L2_PIX_FMT_YUYV ('YUYV')</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN4343"
></A
><H2
>Name</H2
><CODE
CLASS="CONSTANT"
>V4L2_PIX_FMT_YUYV</CODE
>&nbsp;--&nbsp;Packed format with &frac12; horizontal chroma
resolution, also known as YUV 4:2:2</DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN4347"
></A
><H2
>Description</H2
><P
>In this format each four bytes is two pixels. Each four
bytes is two Y's, a Cb and a Cr. Each Y goes to one of the pixels, and
the Cb and Cr belong to both pixels. As you can see, the Cr and Cb
components have half the horizontal resolution of the Y component.
<CODE
CLASS="CONSTANT"
>V4L2_PIX_FMT_YUYV </CODE
> is known in the Windows
environment as YUY2.</P
><DIV
CLASS="EXAMPLE"
><A
NAME="AEN4351"
></A
><P
><B
>Example 2-1. <CODE
CLASS="CONSTANT"
>V4L2_PIX_FMT_YUYV</CODE
> 4 &times; 4
pixel image</B
></P
><DIV
CLASS="FORMALPARA"
><P
><B
>Byte Order. </B
>Each cell is one byte.
                <DIV
CLASS="INFORMALTABLE"
><P
></P
><A
NAME="AEN4357"
></A
><TABLE
BORDER="0"
FRAME="void"
CLASS="CALSTABLE"
><COL
WIDTH="2*"
ALIGN="LEFT"><COL><COL><COL><COL><COL><COL><COL><COL><TBODY
VALIGN="TOP"
><TR
><TD
>start&nbsp;+&nbsp;0:</TD
><TD
>Y'<SUB
>00</SUB
></TD
><TD
>Cb<SUB
>00</SUB
></TD
><TD
>Y'<SUB
>01</SUB
></TD
><TD
>Cr<SUB
>00</SUB
></TD
><TD
>Y'<SUB
>02</SUB
></TD
><TD
>Cb<SUB
>01</SUB
></TD
><TD
>Y'<SUB
>03</SUB
></TD
><TD
>Cr<SUB
>01</SUB
></TD
></TR
><TR
><TD
>start&nbsp;+&nbsp;8:</TD
><TD
>Y'<SUB
>10</SUB
></TD
><TD
>Cb<SUB
>10</SUB
></TD
><TD
>Y'<SUB
>11</SUB
></TD
><TD
>Cr<SUB
>10</SUB
></TD
><TD
>Y'<SUB
>12</SUB
></TD
><TD
>Cb<SUB
>11</SUB
></TD
><TD
>Y'<SUB
>13</SUB
></TD
><TD
>Cr<SUB
>11</SUB
></TD
></TR
><TR
><TD
>start&nbsp;+&nbsp;16:</TD
><TD
>Y'<SUB
>20</SUB
></TD
><TD
>Cb<SUB
>20</SUB
></TD
><TD
>Y'<SUB
>21</SUB
></TD
><TD
>Cr<SUB
>20</SUB
></TD
><TD
>Y'<SUB
>22</SUB
></TD
><TD
>Cb<SUB
>21</SUB
></TD
><TD
>Y'<SUB
>23</SUB
></TD
><TD
>Cr<SUB
>21</SUB
></TD
></TR
><TR
><TD
>start&nbsp;+&nbsp;24:</TD
><TD
>Y'<SUB
>30</SUB
></TD
><TD
>Cb<SUB
>30</SUB
></TD
><TD
>Y'<SUB
>31</SUB
></TD
><TD
>Cr<SUB
>30</SUB
></TD
><TD
>Y'<SUB
>32</SUB
></TD
><TD
>Cb<SUB
>31</SUB
></TD
><TD
>Y'<SUB
>33</SUB
></TD
><TD
>Cr<SUB
>31</SUB
></TD
></TR
></TBODY
></TABLE
><P
></P
></DIV
>
              </P
></DIV
><DIV
CLASS="FORMALPARA"
><P
><B
>Color Sample Location. </B
>                <DIV
CLASS="INFORMALTABLE"
><P
></P
><A
NAME="AEN4436"
></A
><TABLE
BORDER="0"
FRAME="void"
CLASS="CALSTABLE"
><COL><COL><COL><COL><COL><COL><COL><TBODY
VALIGN="TOP"
><TR
><TD
>&nbsp;</TD
><TD
>0</TD
><TD
>&nbsp;</TD
><TD
>1</TD
><TD
>&nbsp;</TD
><TD
>2</TD
><TD
>&nbsp;</TD
><TD
>3</TD
></TR
><TR
><TD
>0</TD
><TD
>Y</TD
><TD
>C</TD
><TD
>Y</TD
><TD
>&nbsp;</TD
><TD
>Y</TD
><TD
>C</TD
><TD
>Y</TD
></TR
><TR
><TD
>1</TD
><TD
>Y</TD
><TD
>C</TD
><TD
>Y</TD
><TD
>&nbsp;</TD
><TD
>Y</TD
><TD
>C</TD
><TD
>Y</TD
></TR
><TR
><TD
>2</TD
><TD
>Y</TD
><TD
>C</TD
><TD
>Y</TD
><TD
>&nbsp;</TD
><TD
>Y</TD
><TD
>C</TD
><TD
>Y</TD
></TR
><TR
><TD
>3</TD
><TD
>Y</TD
><TD
>C</TD
><TD
>Y</TD
><TD
>&nbsp;</TD
><TD
>Y</TD
><TD
>C</TD
><TD
>Y</TD
></TR
></TBODY
></TABLE
><P
></P
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>
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